/**
 * Copyright 2010-2011 initialize4j.org
 * 
 * <pre>
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * </pre>
 * 
 * <pre>
 * http://www.apache.org/licenses/LICENSE-2.0
 * </pre>
 * 
 * <pre>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 * </pre>
 */
package org.initialize4j.service;

import java.lang.reflect.Field;

import org.apache.commons.beanutils.BeanUtils;

/**
 * @author <a href="hillger.t@gmail.com">hillger.t</a>
 */
public final class InitializationUtil {

  /**
   * Private constructor to prevent initialization of instances of this class.
   */
  private InitializationUtil() {}
  
  /**
   * Instantiates an object with the given class. 
   * 
   * @param <T>
   * @param clazz
   * @return
   * @throws InitializeException
   */
  public static <T> T instance(Class<T> clazz) throws InitializeException {
    try {
      return clazz.newInstance();
    }
    catch (Exception e) {
      throw new InitializeException(e);
    }
  }

  /**
   * Returns a field value for the given source object and provided {@link Field} instance.
   * 
   * @param src
   * @param field
   * @return
   * @throws InitializeException
   */
  public static Object getFieldValue(Object src, Field field) throws InitializeException {
    try {
      return BeanUtils.getProperty(src, field.getName());
    }
    catch (Exception e) {
      throw new InitializeException(e);
    }
  }

  /**
   * Sets a field value for the given source object and provided {@link Field} instance.
   * 
   * @param src
   * @param field
   * @param value
   * @throws InitializeException
   */
  public static void setFieldValue(Object src, Field field, Object value) throws InitializeException {
    try {
      BeanUtils.setProperty(src, field.getName(), value);
    }
    catch (Exception e) {
      throw new InitializeException(e);
    }
  }
}
